Figure 4.
The image displays X-ray diffraction patterns on a graph with the horizontal axis labelled as two theta (Th) ranging from zero to sixty degrees, and the vertical axis labelled as counts ranging from zero to six hundred. Three distinct curves represent different concentrations of manganese dioxide: 0.1 M nO2, illustrated in blue; 0.3 M nO2 in red; and 0.5 M nO2 in black. Each line includes peaks indicating the presence of Sodium aluminum silicate hydrate, marked with a triangle, and Quartz, noted with a diamond. The data flows horizontally across the x-axis, while the counts increase vertically. The legend in the upper portion identifies the mineral types denoted by the symbols.XRD patterns of prepared geopolymer samples that contain different ratios of MnO2 nanorods